EP4546337A3 - Adaptive bandwidth extension and apparatus for the same - Google Patents

Adaptive bandwidth extension and apparatus for the same Download PDF

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Publication number
EP4546337A3
EP4546337A3 EP24219925.5A EP24219925A EP4546337A3 EP 4546337 A3 EP4546337 A3 EP 4546337A3 EP 24219925 A EP24219925 A EP 24219925A EP 4546337 A3 EP4546337 A3 EP 4546337A3
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EP
European Patent Office
Prior art keywords
band
audio signal
sub
excitation spectrum
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24219925.5A
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German (de)
English (en)
French (fr)
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EP4546337A2 (en
Inventor
Yang Gao
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of EP4546337A2 publication Critical patent/EP4546337A2/en
Publication of EP4546337A3 publication Critical patent/EP4546337A3/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/18—Vocoders using multiple modes
    • G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
    • G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
    • G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/16—Vocoder architecture
    • G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/26—Pre-filtering or post-filtering
    • G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
    • G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
EP24219925.5A 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same Pending EP4546337A3 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201361875690P 2013-09-10 2013-09-10
US14/478,839 US9666202B2 (en) 2013-09-10 2014-09-05 Adaptive bandwidth extension and apparatus for the same
EP17186095.0A EP3301674B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP23168838.3A EP4258261B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP14844454.0A EP3039676B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
PCT/CN2014/086135 WO2015035896A1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same

Related Parent Applications (4)

Application Number Title Priority Date Filing Date
EP23168838.3A Division-Into EP4258261B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP23168838.3A Division EP4258261B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP14844454.0A Division EP3039676B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP17186095.0A Division EP3301674B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same

Publications (2)

Publication Number Publication Date
EP4546337A2 EP4546337A2 (en) 2025-04-30
EP4546337A3 true EP4546337A3 (en) 2025-05-28

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Family Applications (4)

Application Number Title Priority Date Filing Date
EP24219925.5A Pending EP4546337A3 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP14844454.0A Active EP3039676B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP23168838.3A Active EP4258261B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP17186095.0A Active EP3301674B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same

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EP14844454.0A Active EP3039676B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP23168838.3A Active EP4258261B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same
EP17186095.0A Active EP3301674B1 (en) 2013-09-10 2014-09-09 Adaptive bandwidth extension and apparatus for the same

Country Status (15)

Country Link
US (2) US9666202B2 (enrdf_load_stackoverflow)
EP (4) EP4546337A3 (enrdf_load_stackoverflow)
JP (1) JP6336086B2 (enrdf_load_stackoverflow)
KR (2) KR101785885B1 (enrdf_load_stackoverflow)
CN (2) CN107393552B (enrdf_load_stackoverflow)
AU (1) AU2014320881B2 (enrdf_load_stackoverflow)
BR (1) BR112016005111B1 (enrdf_load_stackoverflow)
CA (1) CA2923218C (enrdf_load_stackoverflow)
ES (2) ES3020834T3 (enrdf_load_stackoverflow)
MX (1) MX356721B (enrdf_load_stackoverflow)
MY (1) MY192508A (enrdf_load_stackoverflow)
PL (1) PL3301674T3 (enrdf_load_stackoverflow)
RU (1) RU2641224C2 (enrdf_load_stackoverflow)
SG (1) SG11201601637PA (enrdf_load_stackoverflow)
WO (1) WO2015035896A1 (enrdf_load_stackoverflow)

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